Rotary brush.



H. NIELSON.

ROTARY BRUSH.

@www @m- H. NIELSON.

ROTARY BRUSH.

APPLICATION FILED APR. 26,1907.

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HENRY NIELSON, OF CLEVELAND, OHIO, ASSIGNOR TO THE OSBORN MANUFACTURING COMPANY` OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

ROTARY BRUSH.

Specification of Letters Patent.

Patented Jan. 12, 190e.

To all whom 'it may concern:

Be it known that I, HENRY NrnLsoN,` citi- Zen of the United States, resident of Cleveland, county of Cuyahoga, and State. of Ohio, have invented a new and useful Imrovement in Rotary Brushes, of which the following is a specification, the princi le of the .invention being herein explains and the best modein which I have contemplated ap lying that principle, so as to distinguish it rom other inventions.

My invention relates to rotary brushes and particularly to a device of that character in which the brush comprises a series of bristle sections clamped by suitable means into a unitary brush structure.

Said invention consists of means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the following descri tion set forth in detail certain means embodying the invention, such disclosed means constituting but one of various mechanical forms in which the principle of the invention may be used.

' In said annexed drawing: Figures 1 and 2 represent inside elevation of the two complementary clamp members forming an element of my improved rotary brush; Fig. 3 represents an elevation of a bristle section upon which is clamped the binding element shown in Figs. 1 and 2, one member of said element being shown in broken elevation Fig. 4 represents a broken perspective of said element in assembled condition, the bristle section to be retained between the two members of the same not b eing shown; Fig. 5 is a side elevation of a brush embodying a modified form of my improved construction; Fig. 6 shows, 'detached from such modified form of brush, one of the clamp members corresponding' to those represented in Figs. l and 2; Fig. 7 is a similar view of the complementary clampmember; Fig. 8 is a section of the latter taken on line 8 8, Fig. 7; while Fig. 9 is an end elevation of a clamping hub element characterizing still another modiiication of the invention.

My improved rotary brush is a unitary structure built up of any desired or suitable number of similar parts or sections, of which section A, Fig. 3, is a type. Each of said sections A comprises an annular bristle section a and a pair of complementary clamping members a a2 bound together in the form rst to beconsidered by means of interlocking lugs or tongues a3 and a5 respectively. Said annular bristle section a is -of well known'construction comprising a plurality of interlocked metallic nbers (L12 arranged radially, theinner ends of which are securely locked between adouble twisted Wire strand als. The clamping members. a and a2 are of aA diameter somewhat larger than the inner diameter of the bristle section a and are. provided upon htheir inner or comsions a7 as, respectively, forming a seat a9 adapted to receive the twisted wire strand a13 of the bristle section c and the inner ends of the bristle iibers bound thereby, when `said clamping members are interlocked with la bristle section a retained between them.

The clamping members a a? are substantially flat plates stamped out of suitable material, and, is as plainly shown in Figs. .1 and y.2, both may be made by one die, since .they are similar in all res ects. The tongues a a5 are made by partial y severing ortions of the members a a2, respectively, rom the plate bodies and forming the portions thus severed into locking' tongues, this being acshown in the drawing by bending said portions inwardly so as to incline ina general tangential direction with respect to the surface of said plate, whereby they are adapted to interlock, as plainly shown in Fig. 4, when the members a a2 of the binding element are assembl This formation of the locking tongues 1s designed to be accom lished without removin any of the materialof the mem.- bers a a2, a though it is often more practicable and, therefore, preferable to stamp out or otherwise remove portions of the material to form slits or narrow slots a4 aff, and then form the tongue-portions a3- a-bounded by these slits into interlocking members. This is the form of construction thatvI have illusvtrated inthe first four figures of the drawings. Said slits may be of any desired form or shape, and either curved or angular, their purpose beingto facilitate the formation of the tongues .a3 a5 andthe vinterlocking of the same.

From the foregoing description it will be readily apparent that a bristle section a may be laid upon one of the clamping members, a', for instance, and then the. other clamping member a2 laid upon the bristle section with plementary faces with grooves or deprescomplished in the form of construction l its tongues a5 and slits a,-' in proper relative position- With the tongues a3 and slits al* of member a whence the tongues may be interlocked in any suitable manner. I` prefer to effect this interlocking movement by'means of a small hand-tool having lugs ada ted to fit the holes al of the members a a2, Wlliereby l d one of said members may be turned relatively to the other. According -to varying needs the rotary brush may comprise one or more of the sections A, the same beingv provided with suitable spindle apertures a, and retained upon the spindle in any desired fashionsuch as by a fixed flange, loose collar, and nut, as in any ordinary emery-stand or, the sections might be fastened to ether and to the spindle by means of a suita le sleeve-` Anut after the manner shown in my former United States Letters Patent No. 822,757,`

the spindle holes a in such a case being made large enough to accommodate such a sleeve- For some pu oses, when using a rotary brush built up o a plurality of'sections A, it will be necessary to space said sections apart instead of binding them l into a unitary structure; also, for such purposes as cleanlng radiator sections, etc., 1t will be necessary to have bristles of varying lengths, in

whichcase sections A of varying diameters.

may be clam ed together in the desired arrangement, t e clamping members a a2, of

. coursefbeing all of a uniform diameter, the

difference ofdiameters in the sections A being secured by varying the len thsjin' dif-` ferent sections A of the bristle fi ers 1.12.

In- 'the modified form of my brush illus. .trated in Figs. 5 to `8, inclusive, only one of lates b b2 constituting the clampingv the vmem ers is 'providedwith tongues b3, the

' tongues being1 formed by striking out the face of such other plate. j out by the die in forming the irst or annular plate is very conveniently utilized as the disk b', being obvioulsy'provided with outwardly projecting tongues adapted to func'- wardly so as to assume their rea ment with tongues b3 in the manner desired 65.

tion in the manner required. This disk is preferablyy spaced from the clamping plate b2 y the interposition of a Washer b, the whole being riveted, welded, or otherwise suitably secured together.` edges ottongues Jb are bent slightly outy engageupon i relative rotative movement between Corresponding radial the clamping plates. Y,The manner of asbrush is obviously the same where this alter'- native 4construction is adopted as when the one irst.described is utilized. I

In thethird form of my invention, illusmodification exemplified in the form jusltdescribed is carried a s tep further. In -other words both clampingl members b and b2 are made in the form of annular jlates with inwardly projecting. tongues b3 tirely separate hub member is utilized -to member comprises,' however, simply the washer c14 which bears disks C on its respective sides exactly similar to thesingle disk just` shown. The manner of securing together the twol clamping lates by meansof this hub element should be quite clear'with-v out further descriptive details. An advan` is the presence of a substantiall the form of washer A and attaclied elements, Whether the latterconsist of adisk and plate, or' of two disks.

my invention'maye em loye instead l.of the one explained, change' eing vmade as revided the means stated by any one of the folstated means be employed.

I therefore particularly poi tinctl claim as my invention 1. n aldevice of the character plementary plates, y respective y provided with. a plurality of projecting lugs having enengage with the lugs on the ot draw said plates together upon rotation of lsaid plat-es 1n opposite directlons.

plementary plates, portions of each of said plates being partially severed from the body thereofl and ent away therefrom so .as to' to the surface of said plate, such portionsl of tions of the other to draw said plates together upon relative rotation of said plates.

3. In a rotary brush, the combination with a bristle-section; of two similar clamp- 1n said bristle-section so as-tdretain-the latter between them, each of said clamping meminclined to the surface thereof and lexten. ing in a general tangential direction to the pe- A riphery of the same, the tongues of one memtrated in part only inFig. V9, the process of 5, and an en4 vclamp these plates together to grip the brush section Aplaced between them. Such hub Other modes of applying the dprinciple of lowing claims or the equivalent of su'ch 100 nt out and disl members disposedj oneA on each face of sembling the sections to form a complete tage to be noted in connection with the use of 'I l both mo diiied forms of my improved brush solid hub in gards the mechanism herein disclosed, pro- 'l describd, ag

clamping element comprising a air of com- .gaging faces inclined With respect to the s u'race of the plate, said lugs beinglada ted to'.

er p ate to 2. In a device of the character described, a clamping element comprising a'pairof compresent engaging faces inclined with respect one plate being adapted to engage the' por- Abers comprising a plate provided with ton ues ber being adapted to engage the tongues of the other to draw said two members together upon rotation thereof in opposite directions.

4. In a rotary brush, the combination with an annular bristle-section; of two clamping members disposed one on each face of said bristle-section so as to retain the latter between them, eaoh of said clamping members comprising a plate provided with inwardly projecting tongues adapted to interlock with the tongues of the other member, said members each being formed with an annular groove upon its inner vface adapted in `Conjunction Withithe groove of the other member to form a seat for the inner portion of the bristle-section. A

5. In a rotary brush, the combination with an annular bristle-section comprising a plurality of radially disposed bristle fibers and a wire strand twisted around the inner ends of said fibers; of a pair of similar clamping memberseach comprising a plate provided with slits, the material bounded by said slits being formed into a plurality of inwardly projecting interlocking tongues, said members each being formed with a groove upon its inner face adapted in conjunction with the y groove of the other member to form a seat for said Wirel strand and the ends of the `bristle-fibers retained thereby.

HENRY NIELSON.

Attested bg- 1D. T.' Avms,

JNo.- F. OBERLIN. 

